Which of the following statements about enzymes is FALSE?

Question: Which of the following statements about enzymes is FALSE?

1. They provide energy for the reaction to occur
2. They can be reused multiple times
3. Their activity varies with pH &temperature
4. They reduce the activation energy of a reaction
5. The speed of the reaction increases with both enzyme and substrate concentration

Answer

Which of the following statements about enzymes is FALSE?

They provide energy for the reaction to occur – FALSE
They can be reused multiple times
Their activity varies with pH and temperature
They reduce the activation energy of a reaction
The speed of the reaction increases with both enzyme and substrate concentration

Explanation

Enzymes are biocatalysts that increase the rate of reaction by decreasing the activation energy. Enzymes are not consumed in the reaction and are reusable. The activity of enzyme is very sensitive to a change n pH or temperature of the reaction. The rate of a chemical reaction increases with an increase in enzyme or substrate concentrations.